Locomotive frame



wm, n? nv 1930 3 Sheets- SheenA M. RIVKIN LOCOMOTlVE FRAME Filed June18.

May 3, 1932.

May 3, 1932. M. RIVKIN LOCOMOTIVE FRAAME Filed June 18. 1930 5Sheets-Sheet 2 May 3, 1932. 1,857,064

M. RIVKIN LOCOMOTIVE FRAME 5 Sheets-Sheet 3 Filed June 18, 1930 PatentedMay 3,1932' v i f 1,857,064.

UNITED s'rixres PATENT-V' oFFicE MENAHiiM Rivxm, orriaiinennnrHIVA,.inimsYLvANIAv LocoMo'rIvE FRAME Application led June18, 1930;"Seria1'No. 462,009.

My invention relates to certain improve- Fig. 6 is a sectional view onthe line 6-6, ments in the construction of the rear end of F ig. 4; f alocomotive frame, thatis, the portionwhich .liig 7 is a sectional Viewon the line 7 7, extends under the lire box and carries the foot Fig. 3;z plate and the bumper plate. f Y b`ig.f8 is a sectional view on theline 8 8, 55'

One object of my invention is to extend Fig. 4; the rear end of thelocomotive frame under Eig. 9 is aV longitudinal sectional view on theiire box and at a comparatively low level the line 9--9,` Fig. 4; f soas to avoid the ash pan and other parts of 1 F ig. 10 is a longitudinalsectional view on the locomotive. This extension is pref'erathe line10-10, Fig. 4k; f f 60 bly integral with the main frame but may be Fig.ll'is a View illustrating a modification separate therefrom and boltedthereto fdeof that portion vof the frame that straddles sired. 4 f theaxle; and g Another object of the invention is to so con- Figs. 12 and13 are sectional views of the 5 struct the frame that it will straddlethe axle rear end frame when used in connection with 65 of the reartruck, so that the rear end conthe truckhaving inside boxes. structionVcan be much lower thanheretofore.l 1 isl the main frame of thelocomotive hav- Another object of the invention is to make ing a pivotpin opening 2 for the truc-k 3.

i the frame witha slotted radial cross-tie for 4 isA the' rear endextension of the frame,

guiding the truck. Y which in the present instance is narrower 70 Afurther object of the invention is to make' than the main frame and madeintegral with the frame narrow at the rear end to provide said frame,but may in some instances be clearance for the swinging ofthetruckwheels. bolted or otherwise secured to it, without de- And a stillfurther object of the invention parting ronithe essential features ofthein- Y..." is to so design the frame that it will be at a vention. ThisVframe extends over the truck 75 r50 frame;

lowv level,` to make applicable an extended 3 and has at its rear endthe foot plate', a draw-bar hinged to the frame at or near the bumper'plate 6 and boiler support 7." Under rear driving wheels and extendingover the the foot plate 5 is a draw head 8 having shoultop of the rearend of the frame and to proders 9-9a, which are engaged by the draw- 30vide shoulders at the rear for the safety bar 10, the details of .whichare described in` 80 draw-bar. The present application is lmit-v acompanion application filed June20, 1930, ed to the construction of theframe of the lo- S612 N O- 462,610 T hc rear end extension 4 comotive,The Safety drawbar, the ash Corp is lower than the main f ranie andhas ahori- Veyer and the truck form the subjects of sepa-V ZOHGa Web 12 andVeItlCfll flanges 13. De` rate applications which will be led ata laterPendlng fffm th? Web l2 1s a box'hke gl'de' 85 data v 14. This girder isinterrupted by the recesses In the accompanying drawings: 15 throughwhich'the axles 16 of the truck Fig. 1 is a side view'of suiiicientofthe rear 3 pexiend' The Side Walls 17. of .the recesses end of alocomoti'veto illustrate my inven# me m the form of Pedestals Whlch .areCon' o tion; nectedbtogetltierlbg 1ctap platfeithler se- 90 cure y verica o sas 1n 1g. or ongl- Fl. 2 1S aplln VleYl-Oftthelfmne'of thio'tudinal bolts as lshown 1n Fig. 11, 18a being como We an S OWS e Iniciana por um the cap plate. 'The rear portion of the rear 0f the tender; endframe is sli'htl ta ered as at 4a and this F F 1g- 3 1S 2 detachedSl'fle Vit/W 0f the 1000" portion is consttrucitedpsimilar tothe main 95motive frame 1111lS 1aCl 111 1 1gl; Y portion of the end frame havingthe `web 12 .Fig 4 is a plan view of the frame shown in and verticalHangesV 13. The webs and the Fig. 3; f flanges mergeinto the foot plateportion 5,

Fig. 5 is an enlarged rear endview of the asshown in Figs. `1 and -2.`

Intermediate the two portions of the'rear 10' end frame is a radialguiding channel 19. The walls 2O of this channel are shaped as shown inFig. and form on their under side rails a. Adapted to slide or roll onthe rails are blocks 21. These'blocks are spaced apart and form part ofthe truck frame 3. lThe blocks extend into the radial guiding channelvas shown ink Fig. 2. 21a is a center pin bearing located between thetwo blocks. This bearing extends through the radial guidingchannel andinto anV elongated opening 36 in the draw bar 10 and is connected to thedraw bar by a pin 37.

The radial slot is taken from the center pin opening 2 of the truck andat the end of thel slot are the connecting members 22, in which areopenings 23, Fig. 6, through which extend the rods 24 ofthe springcentering device 25 attached to the blocks 21 of the truck frame.l Theopening 2 extends through the upper web 26 and the lower web 27 ofthemain frame and through a bearing plate 28 bolted and keyed to the mainframe.

The'forward extension 29 of the frame of the truck 3, which forms aradius bar, extends, into the space between the bearing plate 28 and thelower portionl of the main frame and is pivoted thereto by a pivot pin30 which also. extends through the forward end 31 of the draw bar 10.The draw bar 10. extends from the rear end of themain frame over therear end frame 4-4a, and is coupled at its extreme rear end bya pin 33toY a draw head 34 on the tender 35. The draw bar 10 has upper and lowerprojections 38V and 39 which slide freely on the radial projections9..-9a of the frame. Thisy arrangement prevents the draw bar frombuckling when the engine is pushing. Y

A projection 42 providesa safety. means in case the draw bar breaksinfront of that particular section. This projection 42 mayk be castintegral with themain rear end frame or maybe made as a separate piecebolted thereto, and may be formed as shown in F ig.y

1 with the drawv bar pocket 43, into which extends, the safety bar 44,which is coupled to the draw Ybar pocket structure by a pivotV pin 45and to the draw head of the tender by a pin 33.

f which are secured to a depending flange 49 o n the boiler structure. Y

Tn Fig. 1 an ash pan y50 is shown under the ire box end of the boilerand in this ash pan is-a screw conveyer 51 which extends across theconnection between the locomotive and into the tender discharging intoan ashv pan 52 under ,the tender. This structure forms the subject ofaseparateapplication,Ser. No. 462,608,4iled June 20 1930, now Patent No.

1,190,168, daedrebfuary 8.1931.

In some instances the side flanges 13 of the rear end frame 4 may bemade heavy and the web 12 may be either omitted or may have a series ofopenings therein to reduce the weight. This rear end extension is ofless width than the main frame and forms substantially a one-piececentral member extending from la point in front of the rear truck to andincluding the foot plate and draw head of the locomotive. c n

By making the recesses 15- in the rear end framefor the axles of thetruck and reenforcing the frame at these recesses, the frame can belocated verylow to allow suflicient "space for the ash pan and otherdevice located lunder the fire box of the boiler, at the same timeallowing for the free radial move- Vment of the truck under-the rear endextension of theV frame of the locomotive.

The frame shown. in the drawings is used in connection with atruckhaving outside axle bearings, but when a truck is used havinginside axle bearings,then the frame may be modified as shown in Figs. 12and 13 so as to clear the inside boxes.

I claim:

1. The combination in a locomotive, of a main frame terminating at apoint in front of the rear truck,r and having a central rear endextension narrower than the main frame, said extension having anintegral foot plate and boiler support, and having a transverse radialVguide for the truck.

V2. The combination in a mainframe of a locomotive terminating atapoint,V infront of the rear truck, of a narrow rear end extensioncarrying the bumper and having a radial slot therein `for projections ona truck and having recesses for the axles of the truck.

3. The combination in a main frame of a locomotive, of an integral rearend extension narrower than the main framev and having a bumper,saidrear end extension having a recess in its underside for the freemovement of the axles of the truck pivoted to the main frame ofthetruck. -Y

.4.. The combination in a locomotive, of a main frame terminating backofthe rear drivingV wheels; a narrow rear extension terminating` at therear endlof the locomotive and having a segmental guide way therein; arear truck under the extension and having a radius member pivoted to themain frame; -and a block on the truckextending into the radial guideway.Y

5. The combination in a locomotive, of a4 main frame terminating back ofthe rear driving` wheels; al narrow rear extension ter-- minating at therear end of the locomotive and having a segmental guideway therein; a

rear truck under the extension and having ak radius member pivotedto themainframe.; a block at the center of the truck and extending intothesegmental guidewayya draw barf also pivoted to the main frame andconnectedto the block of the truck; and a tender to whichy the draw baris connected. v

6. The combination in a locomotive, of a main frame; a rear swing truck,said frame terminating in front of the body of the truck and having anarrowextension above the truck and extending to the rear ofthelocomotive; a foot plate; and rear supports for the re box of theboiler made integral wit-h the narrow extension of thef'rame; and, adraw bar pivoted to the main frame and extending to a point beyond thelocomotive, the narrow extension having` projections forming abutmentsfor the draw bar. Y n v The combination in a locomotive, of a main framehaving a narrow girder-like extension at the rear, said extension beingrecessed in its under side to allow the axles to have free movement.

MENAHEM RIVKIN.

